978188300

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{443}}^1$

素因数の和:839

約数の個数: 72

約数和(自身を含む): 2164361472

約数和(自身を除く): 1186173172

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 311, 355, 443, 622, 710, 886, 1244, 1420, 1555, 1772, 1775, 2215, 3110, 3550, 4430, 6220, 7100, 7775, 8860, 11075, 15550, 22081, 22150, 31100, 31453, 44162, 44300, 62906, 88324, 110405, 125812, 137773, 157265, 220810, 275546, 314530, 441620, 551092, 552025, 629060, 688865, 786325, 1104050, 1377730, 1572650, 2208100, 2755460, 3145300, 3444325, 6888650, 9781883, 13777300, 19563766, 39127532, 48909415, 97818830, 195637660, 244547075, 489094150, 978188300]

約数ペア:

[(1, 978188300), (2, 489094150), (4, 244547075), (5, 195637660), (10, 97818830), (20, 48909415), (25, 39127532), (50, 19563766), (71, 13777300), (100, 9781883), (142, 6888650), (284, 3444325), (311, 3145300), (355, 2755460), (443, 2208100), (622, 1572650), (710, 1377730), (886, 1104050), (1244, 786325), (1420, 688865), (1555, 629060), (1772, 552025), (1775, 551092), (2215, 441620), (3110, 314530), (3550, 275546), (4430, 220810), (6220, 157265), (7100, 137773), (7775, 125812), (8860, 110405), (11075, 88324), (15550, 62906), (22081, 44300), (22150, 44162), (31100, 31453)]