19900080

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:145

約数の個数: 200

約数和(自身を含む): 71839152

約数和(自身を除く): 51939072

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 81, 83, 90, 108, 111, 120, 135, 144, 148, 162, 166, 180, 185, 216, 222, 240, 249, 270, 296, 324, 332, 333, 360, 370, 405, 415, 432, 444, 498, 540, 555, 592, 648, 664, 666, 720, 740, 747, 810, 830, 888, 996, 999, 1080, 1110, 1245, 1296, 1328, 1332, 1480, 1494, 1620, 1660, 1665, 1776, 1992, 1998, 2160, 2220, 2241, 2490, 2664, 2960, 2988, 2997, 3071, 3240, 3320, 3330, 3735, 3984, 3996, 4440, 4482, 4980, 4995, 5328, 5976, 5994, 6142, 6480, 6640, 6660, 6723, 7470, 7992, 8880, 8964, 9213, 9960, 9990, 11205, 11952, 11988, 12284, 13320, 13446, 14940, 14985, 15355, 15984, 17928, 18426, 19920, 19980, 22410, 23976, 24568, 26640, 26892, 27639, 29880, 29970, 30710, 33615, 35856, 36852, 39960, 44820, 46065, 47952, 49136, 53784, 55278, 59760, 59940, 61420, 67230, 73704, 79920, 82917, 89640, 92130, 107568, 110556, 119880, 122840, 134460, 138195, 147408, 165834, 179280, 184260, 221112, 239760, 245680, 248751, 268920, 276390, 331668, 368520, 414585, 442224, 497502, 537840, 552780, 663336, 737040, 829170, 995004, 1105560, 1243755, 1326672, 1658340, 1990008, 2211120, 2487510, 3316680, 3980016, 4975020, 6633360, 9950040, 19900080]

約数ペア:

[(1, 19900080), (2, 9950040), (3, 6633360), (4, 4975020), (5, 3980016), (6, 3316680), (8, 2487510), (9, 2211120), (10, 1990008), (12, 1658340), (15, 1326672), (16, 1243755), (18, 1105560), (20, 995004), (24, 829170), (27, 737040), (30, 663336), (36, 552780), (37, 537840), (40, 497502), (45, 442224), (48, 414585), (54, 368520), (60, 331668), (72, 276390), (74, 268920), (80, 248751), (81, 245680), (83, 239760), (90, 221112), (108, 184260), (111, 179280), (120, 165834), (135, 147408), (144, 138195), (148, 134460), (162, 122840), (166, 119880), (180, 110556), (185, 107568), (216, 92130), (222, 89640), (240, 82917), (249, 79920), (270, 73704), (296, 67230), (324, 61420), (332, 59940), (333, 59760), (360, 55278), (370, 53784), (405, 49136), (415, 47952), (432, 46065), (444, 44820), (498, 39960), (540, 36852), (555, 35856), (592, 33615), (648, 30710), (664, 29970), (666, 29880), (720, 27639), (740, 26892), (747, 26640), (810, 24568), (830, 23976), (888, 22410), (996, 19980), (999, 19920), (1080, 18426), (1110, 17928), (1245, 15984), (1296, 15355), (1328, 14985), (1332, 14940), (1480, 13446), (1494, 13320), (1620, 12284), (1660, 11988), (1665, 11952), (1776, 11205), (1992, 9990), (1998, 9960), (2160, 9213), (2220, 8964), (2241, 8880), (2490, 7992), (2664, 7470), (2960, 6723), (2988, 6660), (2997, 6640), (3071, 6480), (3240, 6142), (3320, 5994), (3330, 5976), (3735, 5328), (3984, 4995), (3996, 4980), (4440, 4482)]