18958860

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 61641216

約数和(自身を除く): 42682356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 81, 83, 90, 94, 108, 135, 141, 162, 166, 180, 188, 235, 243, 249, 270, 282, 324, 332, 405, 415, 423, 470, 486, 498, 540, 564, 705, 747, 810, 830, 846, 940, 972, 996, 1215, 1245, 1269, 1410, 1494, 1620, 1660, 1692, 2115, 2241, 2430, 2490, 2538, 2820, 2988, 3735, 3807, 3901, 4230, 4482, 4860, 4980, 5076, 6345, 6723, 7470, 7614, 7802, 8460, 8964, 11205, 11421, 11703, 12690, 13446, 14940, 15228, 15604, 19035, 19505, 20169, 22410, 22842, 23406, 25380, 26892, 33615, 35109, 38070, 39010, 40338, 44820, 45684, 46812, 57105, 58515, 67230, 70218, 76140, 78020, 80676, 100845, 105327, 114210, 117030, 134460, 140436, 175545, 201690, 210654, 228420, 234060, 315981, 351090, 403380, 421308, 526635, 631962, 702180, 947943, 1053270, 1263924, 1579905, 1895886, 2106540, 3159810, 3791772, 4739715, 6319620, 9479430, 18958860]

約数ペア:

[(1, 18958860), (2, 9479430), (3, 6319620), (4, 4739715), (5, 3791772), (6, 3159810), (9, 2106540), (10, 1895886), (12, 1579905), (15, 1263924), (18, 1053270), (20, 947943), (27, 702180), (30, 631962), (36, 526635), (45, 421308), (47, 403380), (54, 351090), (60, 315981), (81, 234060), (83, 228420), (90, 210654), (94, 201690), (108, 175545), (135, 140436), (141, 134460), (162, 117030), (166, 114210), (180, 105327), (188, 100845), (235, 80676), (243, 78020), (249, 76140), (270, 70218), (282, 67230), (324, 58515), (332, 57105), (405, 46812), (415, 45684), (423, 44820), (470, 40338), (486, 39010), (498, 38070), (540, 35109), (564, 33615), (705, 26892), (747, 25380), (810, 23406), (830, 22842), (846, 22410), (940, 20169), (972, 19505), (996, 19035), (1215, 15604), (1245, 15228), (1269, 14940), (1410, 13446), (1494, 12690), (1620, 11703), (1660, 11421), (1692, 11205), (2115, 8964), (2241, 8460), (2430, 7802), (2490, 7614), (2538, 7470), (2820, 6723), (2988, 6345), (3735, 5076), (3807, 4980), (3901, 4860), (4230, 4482)]