20449530

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 38648070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 37, 45, 46, 54, 69, 74, 89, 90, 111, 115, 135, 138, 178, 185, 207, 222, 230, 267, 270, 333, 345, 370, 414, 445, 534, 555, 621, 666, 690, 801, 851, 890, 999, 1035, 1110, 1242, 1335, 1602, 1665, 1702, 1998, 2047, 2070, 2403, 2553, 2670, 3105, 3293, 3330, 4005, 4094, 4255, 4806, 4995, 5106, 6141, 6210, 6586, 7659, 8010, 8510, 9879, 9990, 10235, 12015, 12282, 12765, 15318, 16465, 18423, 19758, 20470, 22977, 24030, 25530, 29637, 30705, 32930, 36846, 38295, 45954, 49395, 55269, 59274, 61410, 75739, 76590, 88911, 92115, 98790, 110538, 114885, 148185, 151478, 177822, 184230, 227217, 229770, 276345, 296370, 378695, 444555, 454434, 552690, 681651, 757390, 889110, 1136085, 1363302, 2044953, 2272170, 3408255, 4089906, 6816510, 10224765, 20449530]

約数ペア:

[(1, 20449530), (2, 10224765), (3, 6816510), (5, 4089906), (6, 3408255), (9, 2272170), (10, 2044953), (15, 1363302), (18, 1136085), (23, 889110), (27, 757390), (30, 681651), (37, 552690), (45, 454434), (46, 444555), (54, 378695), (69, 296370), (74, 276345), (89, 229770), (90, 227217), (111, 184230), (115, 177822), (135, 151478), (138, 148185), (178, 114885), (185, 110538), (207, 98790), (222, 92115), (230, 88911), (267, 76590), (270, 75739), (333, 61410), (345, 59274), (370, 55269), (414, 49395), (445, 45954), (534, 38295), (555, 36846), (621, 32930), (666, 30705), (690, 29637), (801, 25530), (851, 24030), (890, 22977), (999, 20470), (1035, 19758), (1110, 18423), (1242, 16465), (1335, 15318), (1602, 12765), (1665, 12282), (1702, 12015), (1998, 10235), (2047, 9990), (2070, 9879), (2403, 8510), (2553, 8010), (2670, 7659), (3105, 6586), (3293, 6210), (3330, 6141), (4005, 5106), (4094, 4995), (4255, 4806)]