237998655

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 454243680

約数和(自身を除く): 216245025

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 157, 171, 197, 285, 405, 471, 513, 591, 785, 855, 985, 1413, 1539, 1773, 2355, 2565, 2955, 2983, 3743, 4239, 5319, 7065, 7695, 8865, 8949, 11229, 12717, 14915, 15957, 18715, 21195, 26595, 26847, 30929, 33687, 44745, 56145, 63585, 79785, 80541, 92787, 101061, 134235, 154645, 168435, 241623, 278361, 303183, 402705, 463935, 505305, 587651, 835083, 1208115, 1391805, 1515915, 1762953, 2505249, 2938255, 4175415, 5288859, 8814765, 12526245, 15866577, 26444295, 47599731, 79332885, 237998655]

約数ペア:

[(1, 237998655), (3, 79332885), (5, 47599731), (9, 26444295), (15, 15866577), (19, 12526245), (27, 8814765), (45, 5288859), (57, 4175415), (81, 2938255), (95, 2505249), (135, 1762953), (157, 1515915), (171, 1391805), (197, 1208115), (285, 835083), (405, 587651), (471, 505305), (513, 463935), (591, 402705), (785, 303183), (855, 278361), (985, 241623), (1413, 168435), (1539, 154645), (1773, 134235), (2355, 101061), (2565, 92787), (2955, 80541), (2983, 79785), (3743, 63585), (4239, 56145), (5319, 44745), (7065, 33687), (7695, 30929), (8865, 26847), (8949, 26595), (11229, 21195), (12717, 18715), (14915, 15957)]