19555380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 65402064

約数和(自身を除く): 45846684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 61, 65, 78, 90, 117, 122, 130, 137, 156, 180, 183, 195, 234, 244, 260, 274, 305, 366, 390, 411, 468, 548, 549, 585, 610, 685, 732, 780, 793, 822, 915, 1098, 1170, 1220, 1233, 1370, 1586, 1644, 1781, 1830, 2055, 2196, 2340, 2379, 2466, 2740, 2745, 3172, 3562, 3660, 3965, 4110, 4758, 4932, 5343, 5490, 6165, 7124, 7137, 7930, 8220, 8357, 8905, 9516, 10686, 10980, 11895, 12330, 14274, 15860, 16029, 16714, 17810, 21372, 23790, 24660, 25071, 26715, 28548, 32058, 33428, 35620, 35685, 41785, 47580, 50142, 53430, 64116, 71370, 75213, 80145, 83570, 100284, 106860, 108641, 125355, 142740, 150426, 160290, 167140, 217282, 250710, 300852, 320580, 325923, 376065, 434564, 501420, 543205, 651846, 752130, 977769, 1086410, 1303692, 1504260, 1629615, 1955538, 2172820, 3259230, 3911076, 4888845, 6518460, 9777690, 19555380]

約数ペア:

[(1, 19555380), (2, 9777690), (3, 6518460), (4, 4888845), (5, 3911076), (6, 3259230), (9, 2172820), (10, 1955538), (12, 1629615), (13, 1504260), (15, 1303692), (18, 1086410), (20, 977769), (26, 752130), (30, 651846), (36, 543205), (39, 501420), (45, 434564), (52, 376065), (60, 325923), (61, 320580), (65, 300852), (78, 250710), (90, 217282), (117, 167140), (122, 160290), (130, 150426), (137, 142740), (156, 125355), (180, 108641), (183, 106860), (195, 100284), (234, 83570), (244, 80145), (260, 75213), (274, 71370), (305, 64116), (366, 53430), (390, 50142), (411, 47580), (468, 41785), (548, 35685), (549, 35620), (585, 33428), (610, 32058), (685, 28548), (732, 26715), (780, 25071), (793, 24660), (822, 23790), (915, 21372), (1098, 17810), (1170, 16714), (1220, 16029), (1233, 15860), (1370, 14274), (1586, 12330), (1644, 11895), (1781, 10980), (1830, 10686), (2055, 9516), (2196, 8905), (2340, 8357), (2379, 8220), (2466, 7930), (2740, 7137), (2745, 7124), (3172, 6165), (3562, 5490), (3660, 5343), (3965, 4932), (4110, 4758)]